From c1f712872df8e497bc23808e0bf4ba345ec17dd7 Mon Sep 17 00:00:00 2001
From: bcostm <bco.stm@gmail.com>
Date: Tue, 24 Jan 2017 16:50:55 +0100
Subject: [PATCH] Fix bug in i2c_byte_read function

---
 targets/TARGET_STM/i2c_api.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/targets/TARGET_STM/i2c_api.c b/targets/TARGET_STM/i2c_api.c
index f90bb8772f..e75801a8fc 100644
--- a/targets/TARGET_STM/i2c_api.c
+++ b/targets/TARGET_STM/i2c_api.c
@@ -627,10 +627,9 @@ int i2c_byte_read(i2c_t *obj, int last) {
         }
     }
 
-    /*  Enable reload mode as we don't know how many bytes will eb sent */
-    handle->Instance->CR2 |= I2C_CR2_RELOAD;
-    /*  Set transfer size to 1 */
-    handle->Instance->CR2 |= (I2C_CR2_NBYTES & (1 << 16));
+    /* Enable reload mode as we don't know how many bytes will be sent */
+    /* and set transfer size to 1 */
+    tmpreg |= I2C_CR2_RELOAD | (I2C_CR2_NBYTES & (1 << 16));
     /* Set the prepared configuration */
     handle->Instance->CR2 = tmpreg;